Grammarly
Unicorn Β· $13B12 known investors
Grammarly is an AI-powered writing assistant that helps users write with clarity and confidence across over 1 million apps and websites. The platform serves professionals, students, and teams through free and premium versions, and uses natural language processing to refine tone, suggest rewrites, and improve communication effectiveness.
Also known as Superhuman
Founders & leadership
Investors Β· 12
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Also in the syndicate Β· 2
Valuation Β· disclosed
Disclosed eventsSource: SEC prospectus filings, and round valuations the company or its investors disclosed β follow each entry's link for the claim.
Company profile
researched Aug 2026Grammarly develops an AI-powered writing assistant that analyzes text in real time and returns suggestions for grammar, spelling, punctuation, clarity, conciseness, tone and style. Users see underlines in their text with one-click fixes and explanations, and can set goals for audience, formality and intent so suggestions adapt to context. The product is distributed as browser extensions (Chrome, Safari, Firefox, Edge), desktop applications for Windows and Mac, mobile keyboards, Microsoft Office add-ins and a web editor, and the company states it works across more than 1 million apps, websites and programs, including Gmail, Google Docs, Microsoft Word, Slack, Salesforce, Zendesk, Jira and LinkedIn [3][4][6].
Current product surface includes paragraph rewrites, tone suggestions, proofreading, a "Humanizer" agent and an AI Detector agent, plus generative AI prompt allowances that vary by plan (100 prompts on Free, 2,000 on Pro, unlimited on Enterprise). Enterprise functionality adds unlimited members, dedicated support, confidential mode, granular roles and permissions and data loss prevention. Suggestions are offered in English plus 24 additional languages, with multilingual support included in Free, Pro, Enterprise and Education plans [0][1][3]. Earlier releases include the GrammarlyGO generative AI feature (2023), built on OpenAI models, and Authorship detection for identifying AI-generated content [6].
Grammarly's website states that the company is now part of Superhuman, with enterprise writing support delivered through "Superhuman Go" alongside productivity agents [0][1]. Third-party coverage describes Grammarly acquiring Coda in December 2024 and pursuing Superhuman, expanding from a writing overlay toward a broader productivity and collaborative-document platform [6][7].
Founding story
The three co-founders had previously built a plagiarism-detection product (referred to as My Dropbox) while at university, which gave them experience in writing technologies. They tested an online editor as a subscription product to help students with grammar and spelling, found demand beyond education, and expanded it into a general-purpose writing assistant. Early university sales made the business cash-flow positive and funded growth [7].
Business model
Freemium SaaS. A free tier provides basic grammar, spelling, punctuation and tone detection with limited generative AI use; a Pro tier for individuals and teams costs $12 per member per month billed annually ($30 billed monthly) and adds full-sentence rewrites, tone and clarity suggestions, brand style controls, plagiarism detection and higher AI prompt limits; an Enterprise tier is quoted by sales and adds unlimited seats, administration controls, confidential mode and data loss prevention. Sacra describes Grammarly Business seats priced at roughly $15-25 per user per month and estimates gross margins around 80% despite added LLM inference costs from GrammarlyGO, which the company manages by capping prompts and charging usage-based fees [0][1][3][6].
Subscription revenue from individual consumer subscriptions and per-seat business/enterprise plans, with a free tier used as an acquisition funnel. Sacra estimates $700M ARR as of May 2025, up from $650M at the end of 2024, $500M in 2022 and $350M in 2021, with growth decelerating from roughly 43% year-over-year in 2021-2022 to about 12% in 2023-2024 and 19% cited for 2025 [6].
Traction
40 million people and 50,000 organizations reported using Grammarly; Sacra estimates $700M ARR as of May 2025 and roughly 7% CAGR in daily active users since 2021, noting the company had 7 million daily users and was profitable at the time of its 2017 Series A. Startup Intros lists 10,000+ employees. Customer-cited outcomes on Grammarly's site include 20 days saved annually per user, 50% fewer writing and editing hours, $210K saved in nine months, 3x faster editing, 66% writing-quality improvement, 92% style-guide adoption and a 4.9/5 satisfaction rating [0][1][4][6][7].
Latest developments
Sacra reports $700M ARR reached in May 2025 and $1B in non-dilutive financing from General Catalyst's Customer Value Fund in May 2025, which preserved the 2021 $13B equity valuation and brought total capital raised above $1.55B. Grammarly acquired Coda in December 2024, and Startup Intros references a Superhuman acquisition in the 2024-2025 window with new leadership under Shishir Mehrotra; Grammarly's homepage states the company is now part of Superhuman and that enterprise writing support is delivered through Superhuman Go. Recent product additions on the site include a Humanizer agent and an AI Detector agent [0][1][6][7].
βΈFull profile β market position, technology, go-to-market, geography, history, risks & controversies
Market position
Positioned as a leading AI writing assistant, describing itself as the AI writing leader for more than a decade, with 40 million users and 50,000 organizations. Sacra places it among high-scale productivity software with roughly $700M ARR and a $13B valuation set in 2021, while noting competitive pressure from general-purpose assistants such as ChatGPT and Microsoft Copilot and from dedicated tools including ProWritingAid, LanguageTool and QuillBot [0][1][6].
Sources cite deep NLP and grammatical-error-correction expertise from a founding team with prior plagiarism-detection experience; breadth of integration across browsers, desktop apps, mobile and enterprise tools; a freemium distribution model driving product-led adoption; and higher-level tone, clarity and brand style-guide features beyond spell-checking. Competing tools are described as generally lagging on accuracy, integration breadth and user experience while competing on price [6][7].
Technology
Natural language processing, machine learning and deep learning applied to grammatical error correction, tone detection, clarity and style rewriting, combined with generative AI. GrammarlyGO is powered by OpenAI models. The company also ships an AI Detector/Authorship capability for identifying AI-generated text. Delivery is via browser extensions, desktop and mobile clients and Office add-ins. Grammarly states it does not sell or monetize user content, use it for advertising, or allow third-party service providers to train models on user content [0][1][6][7].
Go-to-market
Product-led growth combining bottom-up and top-down motions: a free consumer tier and frictionless browser/desktop distribution drive mass adoption supported by digital marketing, while enterprise deals often begin with individual employees using personal accounts before organizations formalize company-wide deployments through business subscriptions. Sales-assisted motion exists for Enterprise via a "Contact Sales" path [0][1][6][7].
Individual consumers, students and professionals; business teams in functions such as marketing and HR; and large enterprises seeking brand and style-guide consistency. Sacra notes the consumer base skews heavily toward non-native English speakers, particularly in India and the Philippines, who use it for professional communication and academic writing [3][6][7].
Geography
Headquarters in San Francisco, California, United States. The consumer user base skews toward non-native English speakers, with India and the Philippines specifically cited; the product supports English plus 24 additional languages [3][6][7].
History
Founded in 2009 by Ukrainian-born entrepreneurs Max Lytvyn, Alex (Alexey) Shevchenko and Dmytro (Dima) Lider as a subscription grammar checker for students, sold initially to universities. Brad Hoover was hired as an outside CEO in 2011. A freemium browser extension in 2015 broadened the product into a general writing assistant; a tone detector followed in 2019 and GrammarlyGO generative AI in 2023. Funding rounds included a $110M Series A in 2017, a $90M round in 2019 at a $1B+ valuation, and a 2021 Series C at a $13B valuation, followed by $1B in non-dilutive financing in May 2025. The company acquired Coda in December 2024 and, per Startup Intros, Superhuman in the 2024-2025 period; Grammarly's site now states it is part of Superhuman [0][1][6][7].
Risks & controversies
Sacra notes competitive pressure from ChatGPT and Microsoft Copilot, decelerating revenue growth (from ~43% y/y in 2021-2022 to ~12% in 2023-2024), a revenue mix shifting toward lower-priced consumer seats, increased per-use costs from OpenAI API calls for generative features, and declining efficiency of sales and marketing spend. Public sources also conflict on funding history: Sacra reports over $1.55B raised across Series A/B/C plus non-dilutive financing, while Startup Intros lists only $200M across two rounds, indicating incomplete third-party records. Grammarly's own AI-detection features are framed as a response to concerns about AI-generated content in education and workplaces [6][7].
Compiled by commissioned research from 8 cited public sources β announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed β not independently audited.
Founder mafia
4 people who came through Grammarly went on to found or lead other companies.
Competitors Β· 1
by search overlapCompanies competing with Grammarly for the same Google search keywords, organic and paid, via search-intersection analysis.
Timeline Β· 7
launches, deals, and filingsStartup Intros references Grammarly acquisitions of Coda and Superhuman in 2024-2025; Grammarly's website states Grammarly is now part of Superhuman, with enterprise capabilities delivered through Superhuman Go.
Startup Intros notes new leadership under Shishir Mehrotra as the company expands beyond writing into productivity; Sacra lists Rahul Roy-Chowdhury as CEO.
Grammarly acquired Coda, adding collaborative document and workflow capabilities and signaling a shift from writing assistant to productivity platform.
Launched GrammarlyGO, a generative AI capability powered by OpenAI models that composes text from prompts, rewrites passages, and brainstorms ideas; Grammarly also introduced Authorship detection for AI-generated content.
Grammarly added tone detection, extending the product beyond grammar into style and clarity feedback.
Grammarly introduced a freemium browser extension, expanding from a student-focused grammar checker into a broader writing assistant.
The founders brought in Brad Hoover as an external CEO in 2011.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
βΈResearch sources Β· 8
primary sources listed
- Grammarlygrammarly.com Β· web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Grammarly do?
- Grammarly is an AI writing assistant for grammar, clarity and tone, used by 40M people and 50,000 organizations.
- Who founded Grammarly?
- Grammarly was founded by Max Lytvyn, Alex Shevchenko, Dmytro Lider.
- Who are Grammarly's investors?
- Grammarly's investors include Archer Capital Group, Archer Venture Capital, Breyer Capital, Dria Ventures, Homebrew, IVP (Institutional Venture Partners), Renegade Partners, SignalFire and 2 more.